Buddy Love has the closest answer. Copper forms different oxides with various colors. We see more colors in older coppers and we see these...
All the right answers appear above - but in the beginning its best to buy slabs. Continue to buy slabs UNLESS you start to specialize in a series...
I only talked to him once about his thoughts on the importation of English/Irish Counterfeits and Machin's Mills pieces about 15 years ago. It was...
My new book "Forgotten Coins" coming out shortly via Amazon Books goes into spotting casts with many coin illustrations and XRF assays on almost...
Buy my new book "Forgotten Coins" coming out soon via Amazon Books. Values can only go UP after its published.
Remember there is copper nickel ancients and then Zn paktong which is much later.
On Sunday on 9/24 I will post on EBay a paktong counterfeit pistareen dated 1716. Its suggested by some experts paktong may have entered coinage...
Calcol ... now it makes sense ... THANKS. JPL
When you go into the bank vault the largest box you can get. About 80% full. Some at home. Some being sold on EBAY now over the next two years as...
I think you all missed the boat here? This is the first time I have seen such a strong pedigree chain on a coin and a Judd Proof and all of a...
I have a B&L but I use for contemporary circulating counterfeits and not Mint State Morgans ... 10-30X ... works great. An older model from my...
Silver plated?
Its based on the original Coin Care formulation. Somewhat ...
Go to the World section of Coin Community Forum. Analyzing it soon for Platinum and Silver and hopefully no lead. One of two known. Too complex...
http://www.ebay.com/itm/252839145383?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 4R but says 8R. Rarity 8. JPL
I made a product specifically for copper alloy coins since I am a chemist but like the Moderator said here 99.9% of all products will hurt copper....
To be XRF tested in about a week to reveal the answer. See me on facebook for other CCC study coins of a similar level.
CCC Contest. Contemporary Circulating Counterfeit (CCC) Coin of the Year? Unearthed in the U.K. recently. Lets see how good you guys really are -...
Yes ... the dawn and start of Mercury and counterfeits. See how they end up here:...
Try it on a lead die trial if it has PbO corrosion. Works great with this alloy. Just vinegar - 8/16/24h checks till satisfied.
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